amdgpu_sdma...ared_inv_eng(9)

💅 amdgpu_sdma_is_shared_inv_eng

okay bestie, so this is a page straight out of the Kernel API Manual, section 9, and the whole vibe is: "is this ring, like, sharing its VM invalidation engine with the others or not?" 🦋

The function is amdgpu_sdma_is_shared_inv_eng and no, we are not abbreviating it, it's iconic and it's staying. ✨

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🌸 SYNOPSIS 🌸

bool amdgpu_sdma_is_shared_inv_eng (struct amdgpu_device *adev , struct
amdgpu_ring *ring );

that's it. two pointers in, one bool out. simple. slay. 💅

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🎀 ARGUMENTS 🎀

• adev — a pointer to the AMDGPU device structure 💖 like, the whole GPU, the main character.
• ring — a pointer to the ring structure we're checking 🫶 this is the one on trial bestie, this is who we're asking about.

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✨ DESCRIPTION ✨

so what does it do? 🧚 it checks whether the given ring is an SDMA ring that shares a VM invalidation engine. that's the whole assignment.

and then it's giving very simple answers, no cap:

• returns true if the ring is such an SDMA ring 🔥
• returns false otherwise 🌈

literally that's it. no plot twist. no secret third thing. periodt. 👑

ngl this is a "yes or no, no essay" kinda function and honestly? respect.

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💜 SEE ALSO 💜

• the kernel file ./drivers/gpu/drm/amd/amdgpu/amdgpu_sdma.c — go read the source, iykyk 😭
• amdgpu_sdma_reset_engine(9) — its friend, its bestie, its fellow icon 🌟

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okay so that's the whole page — wrote it, read it, obsessed with it 💖 this little section lives under ./drivers/gpu/drm/amd/amdgpu, dated October 2026, and yes the page name really is amdgpu_sdma...ared_inv_eng(9) because even manpage headers get to be a little mysterious 🙈 mwah, go check your rings bestie 💜